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Loans and Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | $ 230,703 | $ 216,013
Total gross loans, net of deferred fees, After one but within five years | 632,985 | 554,293
Total gross loans, net of deferred fees, After five years | 756,513 | 616,764
Total gross loans, net of deferred fees | 1,620,201 | 1,387,070
Loans maturing after one year with: fixed interest rates | 1,056,262 | 875,991
Loans maturing after one year with: floating interest rates | 333,236 | 295,066
Commercial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 154,511 | 150,364
Total gross loans, net of deferred fees, After one but within five years | 528,574 | 453,569
Total gross loans, net of deferred fees, After five years | 400,964 | 303,020
Total gross loans, net of deferred fees | 1,084,049 | 906,953
Commercial [Member] | Owner occupied RE [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 25,962 | 24,171
Total gross loans, net of deferred fees, After one but within five years | 164,564 | 167,425
Total gross loans, net of deferred fees, After five years | 181,594 | 125,222
Total gross loans, net of deferred fees | 372,120 | 316,818
Commercial [Member] | Non-owner occupied RE [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 35,003 | 39,519
Total gross loans, net of deferred fees, After one but within five years | 213,384 | 165,764
Total gross loans, net of deferred fees, After five years | 150,779 | 107,515
Total gross loans, net of deferred fees | 399,166 | 312,798
Commercial [Member] | Business [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 74,091 | 73,588
Total gross loans, net of deferred fees, After one but within five years | 124,489 | 107,584
Total gross loans, net of deferred fees, After five years | 45,768 | 44,986
Total gross loans, net of deferred fees | 244,348 | 226,158
Commercial [Member] | Construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 19,455 | 13,086
Total gross loans, net of deferred fees, After one but within five years | 26,137 | 12,796
Total gross loans, net of deferred fees, After five years | 22,823 | 25,297
Total gross loans, net of deferred fees | 68,415 | 51,179
Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 76,192 | 65,649
Total gross loans, net of deferred fees, After one but within five years | 104,411 | 100,724
Total gross loans, net of deferred fees, After five years | 355,549 | 313,744
Total gross loans, net of deferred fees | 536,152 | 480,117
Consumer [Member] | Other [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 7,961 | 7,203
Total gross loans, net of deferred fees, After one but within five years | 10,714 | 11,371
Total gross loans, net of deferred fees, After five years | 4,537 | 4,001
Total gross loans, net of deferred fees | 23,212 | 22,575
Consumer [Member] | Real estate [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 37,128 | 30,172
Total gross loans, net of deferred fees, After one but within five years | 67,254 | 61,809
Total gross loans, net of deferred fees, After five years | 206,889 | 181,069
Total gross loans, net of deferred fees | 311,271 | 273,050
Consumer [Member] | Home equity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 11,097 | 13,331
Total gross loans, net of deferred fees, After one but within five years | 25,556 | 25,807
Total gross loans, net of deferred fees, After five years | 127,001 | 117,003
Total gross loans, net of deferred fees | 163,654 | 156,141
Consumer [Member] | Construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total gross loans, net of deferred fees, One year or less | 20,006 | 14,943
Total gross loans, net of deferred fees, After one but within five years | 887 | 1,737
Total gross loans, net of deferred fees, After five years | 17,122 | 11,671
Total gross loans, net of deferred fees | $ 38,015 | $ 28,351

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